Keith Hackett's verdict

1) Once you have terminated a game, you cannot reverse a previous decision, or resume play: that is clear in law. Besides which, you saw the incident, decided there was no offence and played on – and it is your judgment, ultimately, which counts. Calum Leahy wins the shirt.2) Call their captain over, and make it clear that the injured player cannot return to the field until the game is restarted – so he cannot take the kick (unless there is a need for a re-take). If his teammates still refuse to take it, make it clear to them that the game will be abandoned. That should focus minds. Thanks to Johannah Carroll. 3) This isn't something you can deal with during the match: it's the club's responsibility to ensure that their players are allowed to take part. If they want to they can substitute the player, but if they decide to keep him on, that's their call too. You just need to make sure that both clubs know the situation, and that you will be making a full report to the authorities after the game. Thanks to James Hall.